Method of making revetment-mats.



A. JOHNSON.

METHOD OF MAKING REVETMENT MATS.

APPLICATION HLEDJULY\9,19I5.

1,166,050. Patent-ed Dec. 28, 1915.

2 SHEETSSHEET I.

A. JOHNSON.

METHOD OF MAKING REVETMENT MATS.

.APPLICATION FILED JULY 19, 1915.

1,166,059. 1 Patented Dec. 28, 1915.

2 snans sam 2.

FFICE.

AUGUST JOHNSON, OF NEBRASKA CITY, NEBRASKA.

METHOD OF MAKING REVETMENT-MATS.

"following is a specification.

This invention relates to the manutactui'e ot mats or mattresses employed for protectmg the banks of rivers, seashore-s, etc. These mats are usually of large size and are ordinarily constructed of bundles of brush, twigs, straw, etc., bound and tied together in various Ways. i

The object of my invention is to make a mat of this class of any desired size which is strong and durable and easily manufactured.

In carrying out my invention, I form the mat of a series of bundles or t'ascines of brush, twigs or the like. bound together by a series of cables applied transversely of the bundles in an improved way or in such manner that each cable shallcxtend from one end of the mat to the other cross-wise oi the tascines and shall form loops. bights or hitches which surround the tascincs and interlock with each other so as, to hold each bundle in a compact condition and to hold the bundles close together.

In the accompanying drawings. Figure l is a perspective view of a revetment mat in process of constructiml. Fig. 2 illustrates how a cable is formed into interlockingloops to surround the fascines and to hold them closely in contact with each other. Figs. 3, 4, 5 and (i are diagrammatic views illustrating the different steps in the Formation of the loops in the cable. Fig. 7 is a perspective" view. illustrating how the mat is applied to the bank of a river. Fig. 8 is an end view of the same.

The mat may be. constriwted of brush as shown. or otiany other suitable material. X.- a whole the mat consists of bundles of brush A bound individually by a series of cables B and held together in close contact with each other by the same cables. the several loops or bights in the cable which surround the bundles being intcrloclwd with each other to thushold all the bllndlcs closely and compactly together.

in making the mat I use as many cables as are required according to the size. of the mat. The cables may, for instance, be

Specification of Letters Patent.

Patented Dec. 28, 1915.

. Application filed July 19, 1915. Serial No. 40,686.

spaced from six to eight feet apart. Each cable is applied to the bundles or fascines-in precisely the same way and the several cables are all attached to a bundle before attachmgany one of the cables to the next bundle.

In Fig. 1 of the drawings I have, by way of illustration, shown three cables mat and have'indicated how the cables are attached thereto. One end of each cable is wound around the first bundle a and tied thereto, as indicated at a. of the c: ble is on a reel or spool C and the cable is unwound from the reel as required or as the manufacture of the mat proceeds.

After the free end of the cable is made to surround the first bundle. as indicated at b m 1 1g. 3. and is tied. as indicated at a, a loop I) is tormed m the tree portion of the cable. and passed through the loop I) which surrounds the first bundle. This is indicated in Fig. 3. The loop is drawn out and enlarged. and the brush is carried endwise' through it. The loop 1') is then drawn tight around the next bundlea g as indicated in Fig. -l. and a loop is formed which is passed through the loop 7), in the manner indicated in Fig. The end of the loop is their drawn forward through the loop 6 and enlarged in the manner indicated in Fig. (3 to form a loop 7)", of sufficient size. to receive the bundle of brush for the third tascine in the mat. in like manner the several loops are formed and applied to the fascines.

It will be observed that after the tree end of the cable is secured to the first bundle neither end of the cable is free or in the way when forming the successive. loops. The cable is unwound from the reels only as rapidly as required. It will also be observcd that the several loops are interlocked with each other and that where the cables pass from one loop to another at the topof the mat they are twisted in such manner as to give strength to the connection and an attachment which will not easily loosen. I preferably use cross cables G which connect thecables B. in the manner indicated in Fig. 1. and also in Fig. 8. These may be arranged in any suitable way.

Fig. 2 shows on an enlarged scale the manner in which the cable is looped and how the loops interlock. When a new loop is formed and interlocked with the preceding loop, it is ext nded or enlarged, as indicated in for the I Fig. 2, and may be suspended from a post or other suitable support D. The loop is preferably made large enough for a man to pass through it, carrying with him the brush or bundles of material which are deposited by him in the loop, and preferably the man will pass through all of the enlarged'loops in succession (see Fig. I), laying the brush properly in the loops. After this, the loops are taken off the posts and drawn tightly around the bundles. Just previous, however, to drawing the loops tight the new loops for the next bundles are formed, interloc ed with the preceding loops and manipulated in the manner before described.

.After the mat is applied, the free ends of the cables may be made fast in any suitable way.

In Figs. 7 and 8, the mat is indicated at A and it is suspended from a shore by cables E, supported or anchored at their upper ends v in any suitable way, as indicated at e. The

shore may be prepared in any desired way and the mat may be covered with ballast F or otherwise held down or weighted down when necessary.

As before stated the fascines may be made of any suitable material, brush, however, being preferred, and while I have specified cables as the means employed for binding the fascines it should be understood that suitable ropes, cords, or wires may be used for the same purpose.

I claim as my invention:

1. The method herein described of form that portion of the cable surrounding the first fascine, extending said loop and inserting a fascine endwise in the extended loop, drawing the loop tightly on the fascine, and then in like manner forming successive loops, and interlocking them with the preceding loops.

2. The method herein described of forum ing a revetment mat, consisting in forming a loop, in one end of a cable around a bundle or fascine, forming a loop in the tree portion of the same cable and passing it sidewise through the loop first formed, inserting a fascine into said loop, drawing said loop, tightly about said fascine, forming another loop in the free portion of the cable and inserting it through the loop last formed and interlocking the two together, and then inserting a fascine into the loop last formed and tightening said loop on the fascine.

In testimony whereof, I have hereunto subscribed my name.

AUGUST JOHNSON.

Witnesses:

FRANK A. BATTLING, Hnnwio SCIINELL. 

